1 files changed, 61 insertions, 0 deletions
diff --git a/ui/gfx/skia_util.cc b/ui/gfx/skia_util.cc
new file mode 100644
index 0000000..865f8fda
--- /dev/null
+++ b/ui/gfx/skia_util.cc
@@ -0,0 +1,61 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "gfx/skia_util.h"
+
+#include "gfx/rect.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkColorPriv.h"
+#include "third_party/skia/include/core/SkShader.h"
+#include "third_party/skia/include/effects/SkGradientShader.h"
+
+namespace gfx {
+
+SkRect RectToSkRect(const gfx::Rect& rect) {
+  SkRect r;
+  r.set(SkIntToScalar(rect.x()), SkIntToScalar(rect.y()),
+        SkIntToScalar(rect.right()), SkIntToScalar(rect.bottom()));
+  return r;
+}
+
+gfx::Rect SkRectToRect(const SkRect& rect) {
+  return gfx::Rect(SkScalarToFixed(rect.fLeft),
+                   SkScalarToFixed(rect.fTop),
+                   SkScalarToFixed(rect.width()),
+                   SkScalarToFixed(rect.height()));
+}
+
+SkShader* CreateGradientShader(int start_point,
+                               int end_point,
+                               SkColor start_color,
+                               SkColor end_color) {
+  SkColor grad_colors[2] = { start_color, end_color};
+  SkPoint grad_points[2];
+  grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point));
+  grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point));
+
+  return SkGradientShader::CreateLinear(
+      grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode);
+}
+
+bool BitmapsAreEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2) {
+  void* addr1 = NULL;
+  void* addr2 = NULL;
+  size_t size1 = 0;
+  size_t size2 = 0;
+
+  bitmap1.lockPixels();
+  addr1 = bitmap1.getAddr32(0, 0);
+  size1 = bitmap1.getSize();
+  bitmap1.unlockPixels();
+
+  bitmap2.lockPixels();
+  addr2 = bitmap2.getAddr32(0, 0);
+  size2 = bitmap2.getSize();
+  bitmap2.unlockPixels();
+
+  return (size1 == size2) && (0 == memcmp(addr1, addr2, bitmap1.getSize()));
+}
+
+}  // namespace gfx